Quetta, Pakistan, May 01, 2010, SPA -- Police say a roadside bomb has exploded near a police vehicle in southwestern Pakistan, wounding 7 people. Police official Ghulam Nabi says Saturday's attack happened in the city of Quetta, and it wounded four officers and three civilians. No one claimed responsibility, the Associated Press reported. --SPA 11:44 LOCAL TIME 08:44 GMT www.spa.gov.sa/775511